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## Homework Statement

Ball 1 has an inertia of 0.500 kg and ball 2 has an inertia of 0.600 kg . Ball 1 is moving away from you at 5.0 m/s, and you decide to throw ball 2 at it to make it go faster. The balls collide head-on, and the coefficient of restitution for the collision is 0.95.

Part A)How fast must ball 2 be traveling in order to double the velocity of ball 1?

ANS: 9.7 m/s

Part B) What is the initial relative velocity of the two balls?

ANS: 4.7 m/s

Part C)What is their reduced inertia?

ANS: 0.27kg

Part D )

**What percentage of the original kinetic energy is convertible?**## Homework Equations

Kconv/Ki(x100%)

## The Attempt at a Solution

Kconv/Ki (x100%)

1.215/34.477 (x100%)= 3.5%

( every answer except Part D is correct, i'm looking for help with part D only)